Well yes ten gallon does need to have a power head. I cannot recommend any specific one, but people seem to like rio. I used prolife, got it at *****. Don't ask why.
The lighting I have, is one PC 18W JBJ system for $45. And added canopy that I bought originally from *****, again don't ask. I just changed the bulb to CORALIFE 50/50 15W for about $20. The total of 33W, and $65.
I keep corals, and you can refer to the list down below. If you only want to keep FOWLR or FO, then you don't need that much light. If you want corals then you gotta do something with the light.
Before you buy anything, any light or some sort, consult with people here. Don't just trust your LFS. I did, and it wasn't good.
Hope that helps...
stupid_naso